Mixing up Letters

Exploration Stage: Observatory
From: Inspector
Description: Cryptography is my secret passion. I know how to decrypt the permutation code. To unravel it and understand why the Astronomer didn’t ask anyone to help Helen, I will need a Scytale. It’s a narrow cylinder with a strip of parchment. Look for it in the Observatory.
Completed: Let’s see what message the Scytale will convey to us. This method was invented by the ancient Greeks, and the Astronomer used Latin for the cipher.